QUANTIZED MOTION OF ATOMS IN A MAGNETOOPTICAL POTENTIAL UNDER COHERENT POPULATION TRAPPING IN HIGH-INTENSITY LASER FIELDS

We study theoretically the quantized motion of previously cooled atoms in a one-dimensional magneto-optical potential under coherent populat ion capping (CPT) conditions. We consider atoms with a F-g = 1 --> F-e = 1 transition interacting with a lin perpendicular to lin laser fiel d and a static uniform magnetic field in the high-intensity limit. It is shown that if the Rabi frequency is greater than the Zeeman splinin g, Doppler shift, natural width and detuning, then atoms are captured in the long-lived CPT state while the excited-state population is smal l. We do not take into account the incoherent photon scattering and de scribe the atomic motion by the Schrodinger equation. The oscillation frequency, oscillation damping time and localization size are obtained for atoms moving near the bottom of potential wells in a harmonic app roximation. Narrowing of the vibrational spectral lines due to the CPT effect is predicted.